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Add 90/20 and 45/16

1st number: 4 10/20, 2nd number: 2 13/16

90/20 + 45/16 is 117/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 16 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 20 × 4 = 80,
    90/20 = 90 × 4/20 × 4 = 360/80
  3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
    45/16 = 45 × 5/16 × 5 = 225/80
  4. Add the two like fractions:
    360/80 + 225/80 = 360 + 225/80 = 585/80
  5. 585/80 simplified gives 117/16
  6. So, 90/20 + 45/16 = 117/16
    In mixed form: 75/16

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